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Product Detailed Parameters
- Description：OPTOISOLTR 2.5KV 1CH DARL 4-SSOP
- Series：NEPOC
- Mfr：CEL
- Package：Tube
- Number of Channels：1
- Voltage - Isolation：2500Vrms
- Current Transfer Ratio (Min)：200% @ 1mA
- Current Transfer Ratio (Max)：1000% @ 1mA
- Turn On / Turn Off Time (Typ)：-
- Rise / Fall Time (Typ)：200µs, 200µs
- Input Type：DC
- Output Type：Darlington
- Voltage - Output (Max)：40V
- Current - Output / Channel：90mA
- Voltage - Forward (Vf) (Typ)：1.1V
- Current - DC Forward (If) (Max)：50 mA
- Vce Saturation (Max)：1V
- Operating Temperature：-55°C ~ 100°C
- Mounting Type：Surface Mount
- Package / Case：4-SOIC (0.173", 4.40mm Width)
- Supplier Device Package：4-SSOP
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Overview
The PS2802-1-M-A is a single-channel transistor output optocoupler manufactured by CEL, featuring an NPN Photodarlington output stage. It provides high isolation voltage of 2500 Vrms and operates within a temperature range of -55°C to +100°C. Key electrical parameters include a maximum collector-emitter voltage of 40V, a maximum collector current of 90mA, and a typical forward voltage of 1.1V at DC forward current. The device exhibits a current transfer ratio ranging from 200% minimum to 1000% maximum at 1mA input. Rise and fall times are specified for switching performance, with power dissipation capabilities supporting surface mount applications in SSOP-4 packages.
Feature Summary
- High isolation voltage capability ensuring safe signal transmission between isolated circuits
- Darlington transistor output configuration providing high current gain and sensitivity
- Compact SSOP-4 package design suitable for space-constrained surface mount applications
Applications
- Industrial control systems requiring galvanic isolation
- Power supply feedback loops for voltage regulation
- Signal interfacing between microcontrollers and high-voltage loads
Procurement Notes
Verify the specific suffix 'M' against official CEL documentation to confirm package variant and tape/reel specifications. Ensure compatibility with RoHS directives if required by your manufacturing process. Cross-reference the manufacturer part number with authorized distributors to avoid counterfeit components. Confirm that the operating temperature range meets your environmental requirements before finalizing procurement decisions.
Selection Notes
Select this component when high current transfer ratio is needed for driving loads with minimal input current. The Darlington output structure offers superior sensitivity compared to standard phototransistor variants. Consider the 40V collector-emitter voltage rating for low-voltage switching applications. Evaluate the thermal dissipation characteristics relative to your PCB layout and ambient temperature conditions to ensure reliable long-term operation.
Part Context
This component belongs to the PS2802 series of high isolation voltage photocouplers designed for robust signal transmission. The series typically includes variants with different pin counts and output configurations. The PS2802-1-M-A specifically denotes a single-channel device with a particular package and packaging format defined by the manufacturer's coding system.
Replacement Considerations
Direct substitutes may include other single-channel Darlington output optocouplers with similar 2500Vrms isolation and 40V collector voltage ratings. Verify pinout compatibility and package dimensions (SSOP-4) before substitution. Check current transfer ratio ranges and switching speeds to ensure functional equivalence in your specific circuit design.
